| (19) |
 |
|
(11) |
EP 2 505 307 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
06.03.2013 Bulletin 2013/10 |
| (43) |
Date of publication A2: |
|
03.10.2012 Bulletin 2012/40 |
| (22) |
Date of filing: 16.02.2012 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (84) |
Designated Contracting States: |
|
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL
NO PL PT RO RS SE SI SK SM TR |
|
Designated Extension States: |
|
BA ME |
| (30) |
Priority: |
31.03.2011 JP 2011078036
27.04.2011 JP 2011099778
|
| (71) |
Applicant: Makita Corporation |
|
Anjo, Aichi 446-8502 (JP) |
|
| (72) |
Inventors: |
|
- Matsuno, Tadasuke
Anjo,, Aichi 446-8502 (JP)
- Kobayashi, Kenji
Anjo,, Aichi 446-8502 (JP)
|
| (74) |
Representative: Kramer - Barske - Schmidtchen |
|
Landsberger Strasse 300
80687 München
80687 München (DE) |
|
| |
|
(57) Embodiments of the present invention may include a power tool (1) including a drive
motor (10) and a continuously variable transmission mechanism (30). The continuously
variable transmission mechanism (30) may include a sun roller (32) rotated by a drive
motor (10), the sun roller (32) configured to press on a plurality of planetary rollers
(33), a holder (37) radially supporting the plurality of planetary rollers (33), a
shift ring (36) being in internal contact with the plurality of planetary rollers
(33), and a resistance-reducing portion (37c) disposed at the holder (37) to fill
a gap between the two of the planetary rollers (33).